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even allow the user to update their location on their own terms. As the Battery API finalizes and grows in adoption,
you can use more sophisticated ways of detecting the state of the current battery percentage before going nuts
on location polling. Geolocation opens up new worlds of advertising to marketers, and in the increasing mobile
landscape, it's never been more important to catch your users on the go with the right message. Don't believe me?
Take a look at the graphic from eMarketer.com in Figure 11-13 .
Figure 11-13. The use of location-based services by U.S. consumers